Color vision assessment for displays

    公开(公告)号:US09826898B1

    公开(公告)日:2017-11-28

    申请号:US15362648

    申请日:2016-11-28

    Applicant: Apple Inc.

    CPC classification number: A61B3/066 A61B3/0025 A61B3/0033 A61B3/0041

    Abstract: An electronic device may include a display and control circuitry that operates the display. The control circuitry may be configured to daltonize input images to produce daltonized output images that allow a user with color vision deficiency to see a range of detail that the user would otherwise miss. The daltonization algorithm may be specific to the type and severity of color vision deficiency that the user has. The control circuitry may conduct a color vision assessment using the display. The color vision assessment may include a sequence of test images that are each displayed for a predetermined period of time before moving to the next test image in the sequence. Each test image may include a color patch on a neutral background. A predetermined number of severity levels for each type of color vision deficiency may be tested during the color vision assessment.

    Adjustment of display parameters
    4.
    发明授权

    公开(公告)号:US10199012B2

    公开(公告)日:2019-02-05

    申请号:US15427947

    申请日:2017-02-08

    Applicant: Apple Inc.

    Abstract: Parameters of a display may be adjusted in response to accessing a time value corresponding to an electronic device that includes the display. A brightness value of the display may be adjusted based on the time value to maintain a display characteristic value within a predefined range and below a threshold. The display characteristic value may be independently controllable by one of the brightness or the color temperature of the display. A set of red green blue (RGB) color values of the display may be adjusted independent of the adjustment to the brightness value to maintain the display characteristic value within the predefined range and below the threshold while maintaining the brightness value of the display. In some examples, the RGB color values of the display may be adjusted at approximately the same time as the adjustment of the set of RGB color values of the display is performed.

    Displays with improved color accessibility

    公开(公告)号:US09984658B2

    公开(公告)日:2018-05-29

    申请号:US15244940

    申请日:2016-08-23

    Applicant: Apple Inc.

    Abstract: An electronic device may include a display and control circuitry that operates the display. The control circuitry may be configured to daltonize input images to produce daltonized output images that allow a user with color vision deficiency to see a range of detail that the user would otherwise miss. The daltonization algorithm that the control circuitry applies to input images may be specific to the type of color vision deficiency that the user has. The daltonization strength that the control circuitry applies to the image or portions of the image may vary based on image content. For example, natural images may be daltonized with a lower daltonization strength than web browsing content, which ensures that memory colors such as blue sky and green grass do not appear unnatural to the user while still allowing important details such as hyperlinks and highlighted text to be distinguishable.

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